GAQM CPEH-001 Question Answer
How can telnet be used to fingerprint a web server?
telnet webserverAddress 80HEAD / HTTP/1.0
telnet webserverAddress 80PUT / HTTP/1.0
telnet webserverAddress 80HEAD / HTTP/2.0
telnet webserverAddress 80PUT / HTTP/2.0
TESTED 22 Mar 2026
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